package io;

import java.io.*;

public class CopyDemo3 {
    public static void main(String[] args) throws IOException {
        FileInputStream file = new FileInputStream("jizuiwang.webp");
        BufferedInputStream bis = new BufferedInputStream(file);
        FileOutputStream fos = new FileOutputStream("jizuiwang4.webp");
        BufferedOutputStream bos = new BufferedOutputStream(fos);

        long start = System.currentTimeMillis();
        int d;
        while ((d = bis.read())!= -1){
            bos.write(d);
        }
        long end = System.currentTimeMillis();
        System.out.println("复制完毕,耗时"+(end-start)+"ms");













    }
}
